njrat | 3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6

Analysis

max time kernel
316s
max time network
374s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 09:39

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General

Target

3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe
Size

61KB
MD5

7de96407cfc936824dfe56e9d8ae8de4
SHA1

277d62d7bc00b49e331c6eb92632434ff167bf4c
SHA256

3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6
SHA512

062f2d2e71ccc38cd3d7804f57f020a4c298981a3d2416244816616d184109abe2866ab00e55a895e2e754d3045945c593ba94d6a805c1de41d7d0bba0436617
SSDEEP

768:sgR3hPtQhtOKMUJaUPhzpjL3nxgKBf+iAFscscGAy9vHHgOXFjGHnUQ/o:sgX6h8JUJaGvxb2spjZHgO1jR

Score

10^/10

njrat hacked trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

kirkukihama.no-ip.biz:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes

reg_key
5cd8f17f4086744065eb0992a09e05a2
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

C# Code Source Generator V2.0.exe

pid process

3484 C# Code Source Generator V2.0.exe

pid	process
3484	C# Code Source Generator V2.0.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe

description	pid	process	target process
PID 1232 wrote to memory of 3484	1232	3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe	C# Code Source Generator V2.0.exe
PID 1232 wrote to memory of 3484	1232	3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe	C# Code Source Generator V2.0.exe
PID 1232 wrote to memory of 3484	1232	3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe	C# Code Source Generator V2.0.exe

C:\Users\Admin\AppData\Local\Temp\3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe
"C:\Users\Admin\AppData\Local\Temp\3b3b5ec3d2b79dc4e7efb5dce6d36e1fc921e4523945c997bf0e052498f5beb6.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1232

C:\Users\Admin\AppData\Local\Temp\server\C# Code Source Generator V2.0.exe
"C:\Users\Admin\AppData\Local\Temp\server\C# Code Source Generator V2.0.exe"
2⤵
- Executes dropped EXE
PID:3484

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\server\C# Code Source Generator V2.0.exe

Filesize
29KB

MD5
b5fc08f897b74a606e0a575b45a51586

SHA1
c83891a3959a2a08f5b9c4ebf161a43c53fbda12

SHA256
f5a4a22d6bdea9a4d1965d07e27c81882a02e8c8607c58ced25c8feb3141c0e6

SHA512
9320cfcdea9b9ffbeb50c73e70bb3710c9fb0eaac0ecd4fa4095e5e22599babfd59cf175a123d0afab3aa46da9629cf23257eb5e6b32045c4f7a5f34a5f09c70

Download Submit
C:\Users\Admin\AppData\Local\Temp\server\C# Code Source Generator V2.0.exe

Filesize
29KB

MD5
b5fc08f897b74a606e0a575b45a51586

SHA1
c83891a3959a2a08f5b9c4ebf161a43c53fbda12

SHA256
f5a4a22d6bdea9a4d1965d07e27c81882a02e8c8607c58ced25c8feb3141c0e6

SHA512
9320cfcdea9b9ffbeb50c73e70bb3710c9fb0eaac0ecd4fa4095e5e22599babfd59cf175a123d0afab3aa46da9629cf23257eb5e6b32045c4f7a5f34a5f09c70

Download Submit
memory/1232-132-0x00000000004F0000-0x0000000000506000-memory.dmp

Filesize
88KB

Download
memory/1232-133-0x0000000004EE0000-0x0000000004F7C000-memory.dmp

Filesize
624KB

Download
memory/1232-134-0x0000000005530000-0x0000000005AD4000-memory.dmp

Filesize
5.6MB

Download
memory/1232-135-0x0000000005020000-0x00000000050B2000-memory.dmp

Filesize
584KB

Download
memory/3484-136-0x0000000000000000-mapping.dmp

Download
memory/3484-139-0x000000006FE30000-0x00000000703E1000-memory.dmp

Filesize
5.7MB

Download
memory/3484-140-0x000000006FE30000-0x00000000703E1000-memory.dmp

Filesize
5.7MB

Download